2011-09-20

I found it difficult to find examples on the use of PyMeta2, an implememtation of the OMeta language in Python. I mamaged to put together a small example myself on how to parse a PGP public key block and extract the DSA key.

2011-09-16

The core parts are a HMC6352 compass module connected to a 3.3V Arduino Pro Mini. A ULN2803 with eight Darlington drivers supply power to the vibrators positioned at even intervals around the belt. Everything is powered by a 9V battery.

I found some sample code to read the bearing from the compass, and then added the vibrator control myself.